diff --git a/entry/src/main/ets/data/FbCardData.ets b/entry/src/main/ets/data/FbCardData.ets
index 8600ba2..5eb0f01 100644
--- a/entry/src/main/ets/data/FbCardData.ets
+++ b/entry/src/main/ets/data/FbCardData.ets
@@ -141,6 +141,15 @@ export class FbCardData {
   nowRatio: number = -1;
   /** `15:40` */
   nowLabel: string = '';
+  /** 🔴 v89：本次推送的唯一版本号（`Date.now()`）。
+   *  ⚠️ 卡片 ForEach 的 key **必须**带上前缀：时间轴的冲突组号/空白 key
+   *     （`g0`、`gap0`）每份数据都从 0 重新编号 —— 翻到下一天时 key 一模一样，
+   *     ArkUI ForEach 认为"没变"直接复用旧组件 ⇒ 色块/空白高度全是旧一天的
+   *     （真机实测：10/25、10/26 一直显示 10/24 的「工程管理硕士开题」）。
+   *     日期头、全天区能更新是因为它们的 key（事件 id）确实变了。
+   *  ⚠️ 用 `Date.now()` 而不是 dayOffset：同一天也可能被定时刷新推新数据
+   *     （日程改了），version 必须每次推送都不同才能逼 ForEach 全量重建。 */
+  version: string = '';
 }
 
 /** 两位补零 */
@@ -327,6 +336,9 @@ export async function fbCardBuild(ctx: common.Context, dayOffset: number): Promi
   out.updatedAt = clockText();
   out.nowLabel = out.updatedAt;
   out.dayOffset = dayOffset;
+  /* 🔴 v89：每次推送一个新版本号，卡片侧 ForEach key 全部带上前缀 ——
+     不带的话翻页/刷新时 key 撞车，时间轴整层不重绘（文件头 version 注释）。 */
+  out.version = Date.now().toString();
   out.isToday = dayOffset === 0;
   out.nowRatio = out.isToday ? (now.getHours() * 60 + now.getMinutes()) / 1440 : -1;
 
diff --git a/entry/src/main/ets/pages/card/FbCard2x4.ets b/entry/src/main/ets/pages/card/FbCard2x4.ets
index 3dc1335..ec0f148 100644
--- a/entry/src/main/ets/pages/card/FbCard2x4.ets
+++ b/entry/src/main/ets/pages/card/FbCard2x4.ets
@@ -32,6 +32,8 @@ struct FbCard2x4 {
   @LocalStorageProp('lunarText') lunarText: string = '';
   @LocalStorageProp('dayCount') dayCount: number = 0;
   @LocalStorageProp('upcomingJson') upcomingJson: string = '[]';
+  /* 🔴 v89：推送版本号 —— ForEach key 要带前缀（原因见 FbCardData.version）。 */
+  @LocalStorageProp('version') version: string = '';
   @LocalStorageProp('selectedDate') selectedDate: number = 0;
 
   /** 副标题：`星期二  九月初一` */
@@ -206,7 +208,7 @@ struct FbCard2x4 {
           Column({ space: 6 }) {
             ForEach(this.upcoming(), (item: FbCardUp, idx: number) => {
               this.upcomingRow(item)
-            }, (item: FbCardUp, idx: number) => `${idx}_${item.time}_${item.title}`)
+            }, (item: FbCardUp, idx: number) => `up_${this.version}_${idx}_${item.time}_${item.title}`)
           }
           .width('100%')
           .layoutWeight(1)
diff --git a/entry/src/main/ets/pages/card/FbCard4x4.ets b/entry/src/main/ets/pages/card/FbCard4x4.ets
index fbc81e0..c5ce61a 100644
--- a/entry/src/main/ets/pages/card/FbCard4x4.ets
+++ b/entry/src/main/ets/pages/card/FbCard4x4.ets
@@ -54,6 +54,10 @@ struct FbCard4x4 {
   @LocalStorageProp('viewStartHour') viewStartHour: number = 8;
   @LocalStorageProp('viewEndHour') viewEndHour: number = 18;
   @LocalStorageProp('nowRatio') nowRatio: number = -1;
+  /* 🔴 v89：推送版本号 —— 所有 ForEach 的 key 必须带前缀（原因见 FbCardData.version）。
+     不带的话翻到下一天时 `gap0/g0` 这些 key 一模一样，ArkUI ForEach 复用旧组件，
+     时间轴整层显示旧一天的色块和空白（真机实测踩到）。 */
+  @LocalStorageProp('version') version: string = '';
 
   /** 小时刻度（含起点不含终点） */
   private hours(): number[] {
@@ -239,7 +243,7 @@ struct FbCard4x4 {
         .padding({ left: 5, right: 5 })
         .borderRadius(5)
         .backgroundColor(a.color)
-      }, (a: FbCardListRow, idx: number) => `ad_${idx}_${a.key}`)
+      }, (a: FbCardListRow, idx: number) => `ad_${this.version}_${idx}_${a.key}`)
     }
     .width('100%')
     .padding({ bottom: 3 })
@@ -255,7 +259,7 @@ struct FbCard4x4 {
           .height(HOUR_VP)
           .border({ width: { bottom: 0.5 }, color: { bottom: '#14000000' } })
           .hitTestBehavior(HitTestMode.None)
-      }, (h: number) => `gd${h}`)
+      }, (h: number) => `gd_${this.version}_${h}`)
     }
     .width('100%')
     .height('100%')
@@ -302,19 +306,19 @@ struct FbCard4x4 {
                   .clip(true)
                   .width('100%')
                   .height(b.heightVp < MIN_BLOCK_VP ? MIN_BLOCK_VP : b.heightVp)
-                }, (b: FbCardTlBlock, bi: number) => `b_${b.key}_${bi}`)
+                }, (b: FbCardTlBlock, bi: number) => `b_${this.version}_${b.key}_${bi}`)
               }
               .layoutWeight(1)
               .height('100%')
               .padding({ right: 2 })
               .clip(true)
-            }, (lane: FbCardTlBlock[], li: number) => `ln_${ln.key}_${li}`)
+            }, (lane: FbCardTlBlock[], li: number) => `ln_${this.version}_${ln.key}_${li}`)
           }
           .width('100%')
           .height(this.groupH(ln))
           .alignItems(VerticalAlign.Top)
         }
-      }, (ln: FbCardTlLine) => ln.key)
+      }, (ln: FbCardTlLine) => `${this.version}_${ln.key}`)
     }
     .width('100%')
     .height('100%')
@@ -371,7 +375,7 @@ struct FbCard4x4 {
                   .textAlign(TextAlign.End)
                   .padding({ right: 3 })
                   .border({ width: { bottom: 0.5 }, color: { bottom: '#14000000' } })
-              }, (h: number) => `h${h}`)
+              }, (h: number) => `h_${this.version}_${h}`)
             }
             .width(GUTTER_VP)
             .height(this.contentH())
@@ -486,7 +490,7 @@ struct FbCard4x4 {
             this.listRow(item)
           }
           .width('100%')
-        }, (item: FbCardListRow) => item.key)
+        }, (item: FbCardListRow) => `row_${this.version}_${item.key}`)
       }
       .width('100%')
       .layoutWeight(1)
diff --git a/entry/src/main/ets/pages/card/FbCard6x4.ets b/entry/src/main/ets/pages/card/FbCard6x4.ets
index 1bd721f..f9cb4bd 100644
--- a/entry/src/main/ets/pages/card/FbCard6x4.ets
+++ b/entry/src/main/ets/pages/card/FbCard6x4.ets
@@ -51,6 +51,8 @@ struct FbCard6x4 {
   @LocalStorageProp('viewStartHour') viewStartHour: number = 8;
   @LocalStorageProp('viewEndHour') viewEndHour: number = 18;
   @LocalStorageProp('nowRatio') nowRatio: number = -1;
+  /* 🔴 v89：推送版本号 —— 所有 ForEach 的 key 必须带前缀（原因见 FbCardData.version）。 */
+  @LocalStorageProp('version') version: string = '';
 
   /** 小时刻度（含起点不含终点） */
   private hours(): number[] {
@@ -236,7 +238,7 @@ struct FbCard6x4 {
         .padding({ left: 5, right: 5 })
         .borderRadius(5)
         .backgroundColor(a.color)
-      }, (a: FbCardListRow, idx: number) => `ad_${idx}_${a.key}`)
+      }, (a: FbCardListRow, idx: number) => `ad_${this.version}_${idx}_${a.key}`)
     }
     .width('100%')
     .padding({ bottom: 3 })
@@ -252,7 +254,7 @@ struct FbCard6x4 {
           .height(HOUR_VP)
           .border({ width: { bottom: 0.5 }, color: { bottom: '#14000000' } })
           .hitTestBehavior(HitTestMode.None)
-      }, (h: number) => `gd${h}`)
+      }, (h: number) => `gd_${this.version}_${h}`)
     }
     .width('100%')
     .height('100%')
@@ -299,19 +301,19 @@ struct FbCard6x4 {
                   .clip(true)
                   .width('100%')
                   .height(b.heightVp < MIN_BLOCK_VP ? MIN_BLOCK_VP : b.heightVp)
-                }, (b: FbCardTlBlock, bi: number) => `b_${b.key}_${bi}`)
+                }, (b: FbCardTlBlock, bi: number) => `b_${this.version}_${b.key}_${bi}`)
               }
               .layoutWeight(1)
               .height('100%')
               .padding({ right: 2 })
               .clip(true)
-            }, (lane: FbCardTlBlock[], li: number) => `ln_${ln.key}_${li}`)
+            }, (lane: FbCardTlBlock[], li: number) => `ln_${this.version}_${ln.key}_${li}`)
           }
           .width('100%')
           .height(this.groupH(ln))
           .alignItems(VerticalAlign.Top)
         }
-      }, (ln: FbCardTlLine) => ln.key)
+      }, (ln: FbCardTlLine) => `${this.version}_${ln.key}`)
     }
     .width('100%')
     .height('100%')
@@ -368,7 +370,7 @@ struct FbCard6x4 {
                   .textAlign(TextAlign.End)
                   .padding({ right: 3 })
                   .border({ width: { bottom: 0.5 }, color: { bottom: '#14000000' } })
-              }, (h: number) => `h${h}`)
+              }, (h: number) => `h_${this.version}_${h}`)
             }
             .width(GUTTER_VP)
             .height(this.contentH())
@@ -483,7 +485,7 @@ struct FbCard6x4 {
             this.listRow(item)
           }
           .width('100%')
-        }, (item: FbCardListRow) => item.key)
+        }, (item: FbCardListRow) => `row_${this.version}_${item.key}`)
       }
       .width('100%')
       .layoutWeight(1)